Алергія на кліщів домашнього пилу — основна причина респіраторних форм алергії, а саме алергічного риніту та бронхіальної астми. До  кліщів домашнього пилу сенсибілізовані 1–2% населення у  світі, що еквівалентно 65–
135 млн осіб. Загалом сьогодні доведено існування понад 150 видів кліщів домашнього пилу. Серед них найбільш поширеними і клінічно значимими видами є Dermatophagoides pteronyssinus та Dermatophagoides farinae. У статті представлено практичні поради щодо розпізнавання, діагностики, лікування алергії на кліщів домашнього пилу та попередження розвитку симптомів захворювання.
Ключові слова: алергія, алергія на кліщів домашнього пилу, Dermatophagoides pteronyssinus, Аллервег

Acute respiratory tract infections (ARTI) place an enormous impact on patients and primary healthcare system due to their extraordinary incidence. In 2019, the world prevalence of ARTI reached 17.2 billion and accounted for 43.8% of all causes of the global disease burden [1]. Respiratory infections are the most common reason for seeking medical attention, with personal recurrence rates ranging from 2 to 6 times per year [2]. Although usually mild and self-limiting, ARTIs significantly affect work productivity and quality of life [3].

Emergence of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) causing corona virus disease 2019 (COVID-19) brought a new challenge, being both common and severe, affecting upper and lower airways with considerable constitutional symptoms. As with other respiratory infections, the management of outpatients with mild COVID-19 without risk of progressing to severe disease, remains supportive and include close observation for early recognition of the life-threatening symptoms, reduction the risk of further SARS-CoV-2 transmission, advising on when to seek an in-person evaluation [4]. Absence of the effective specific measures in most COVID-19 cases serves a rationale for exploration of a new complementary approaches, one of which may be the use of probiotics.

Indirect evidence shows that patients with COVID-19 and diarrhea have more severe disease, increased concentration of inflammatory cytokines, markers of tissue damage, suggesting the intestinal cells can serve an additional entry and reservoir for SARS-CoV-2 [5, 6]. As with type II alveolar cells, intestinal and colonic enterocytes express angiotensin I converting enzyme 2 (ACE2), a receptor though which SARS-CoV-2 inoculates the body [7]. Bifidobacteria and lactobacilli adhering to enterocytes can hypothetically interfere with infection process and disease manifestation [8,9,10]. Interestingly that bacteria may potentially downregulate amide and peptide metabolism in the gut including angiotensin-converting enzyme 2 (ACE2) [11, 12]. It may explain the reason that cell cultures exposed to probiotics yielded lesser amount of transmissible gastroenteritis coronaviruses [13]. Additionally, the beneficial effects of probiotics in respiratory infections can be realized via several non-specific mechanisms discussed within the gut-lung axis paradigm [14], including enhancement of innate antiviral immune defense [15]. A recent systematic review of 23 randomized clinical trials involving a total of 6950 participants with ARTI, demonstrated fewer cases, shorter case duration, and reduced antibiotic prescription rates in patients taking probiotics [16].

The objective of this study was to assess the role of short-term ingestion of probiotics in mild symptomatic COVID-19, post-disease symptoms, and humoral immune response to SARS-CoV-2 in outpatients.

The incidence of miscarriage has been increased all over the world. In this situation more often children need artificial ventilation of the lungs (AVL) and form risk group for recurrent and chronic bronchopulmonary pathology development . Interconnection of prematurity – acute pulmonary disorders – the further formation of bronchopulmonary disease is no longer in doubt. It is observed a correlation between the administration of artificial ventilation in the neonatal period and the subsequent formation of bronchopulmonary pathology.  Our studies have shown that in the case of developing bronchial asthma in a child born prematurely and suffering from acute pulmonary disorders in the period of newborn birth, the risk of developing a severe variant of the disease is extremely high . The obtained data showed that asthma in such children is characterized by a severe course, often the so-called variant "difficult asthma" (with frequent exacerbations in the form of an asthmatic condition) is often observed [5, 10]. We have been followed up 27 children with bronchial asthma, whom after birth prolonged ventilation (more than 7 days) was performed due to pulmonary sickness.
The course of asthma in these children is characterized by frequent exacerbations and perscription of high doses of β2-agonists and hormonal drugs. This cohort of patients requires special care both on the part of parents and nursing staff.
      The reason should be sought, analyzing the features of the ante and perinatal period of the child's development [1, 4]. Frequent causes of miscarriage are inflammatory processes of diverse nature and etiology. In the process of inflammation, the number of cytokines, oxidants, and lytic
enzymes increases in the mother's body. In immature children, control over the inflammation process is inadequate [8, 12]. Low levels of antioxidants, antiprotease and anti-inflammatory cytokines can negatively affect the balance between inflammatory and anti-inflammatory cytokines, which in turn causes persistent inflammatory reaction and damage . Chronic inflammation causes hyperreactivity of the respiratory tract, which can not but affect the development and progress of bronchial asthma in the future . It is precisely this situation that determined the relevance and purpose of our study.
        Aim is to study the frequency and the features of the course of broncho-pulmonary pathology in young children who were on artificial ventilation of the lungs in the neonatal period.

It is observed a correlation between the administration of artificial ventilation in the neonatal period and the subsequent formation of bronchopulmonary pathology.
Aim: To study the frequency and the features of the course of broncho-pulmonary pathology in young children who were on artificial ventilation of the lungs in the neonatal period.
Materials and methods: The directions of the selection of medical histories were conducted, which was carried out by artificial ventilation of the lungs for pulmonary causes. The article presents the literature data and own experience of authors, which proves that there is a correlation between the conducted artificial ventilation of the lungs in the neonatal period and the subsequent formation of bronchopulmonary pathology.
Results: The results of a retrospective analysis of 475 children who received respiratory therapy are shown. It is a positive correlation is observed between the duration of artificial ventilation and the incidence of bronchitis (p <0.005) and pneumonia (p <0.005). There is a close correlation between the early introduction of artificial feeding and the development of allergies. We found a positive correlation between the presence of allergic pathology and hereditary predisposition to the development of atopy, gestational age and the development of bronchopulmonary dysplasia.
Conclusions: In 27% of children who stayed on artificial ventilation during the neonatal period, there was a recurrent broncho-obstructive syndrome in early childhood. Premature children who have undergone acute pulmonary disorder and hereditary hereditary burdens should be considered as a highrisk group for developing bronchial asthma. Repeated episodes of broncho-obstructive syndrome in young children, who during the neonatal period were on artificial ventilation of the lungs, were most often due to bronchial asthma, which was characterized by a severe course